Bracelet.



PATENTED EEB. 5, 1907.

E. E. GRAIN. BRACELET.

APPLIOATION FILED sBPT.zs.19oe.

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FRANK n. cRAiN,

a BACON, or ATTLEBoRo OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO BATES MASSACHUSETTS, A FIRM.

BRACELET.

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application filed September 26,1906. Serial No. 336,326.

To @ZZ whom, it may concern:

Be it known that I, FRANK E. GRAIN, citizen of the United States, residing at Providence,'in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Bracelets, of which the following is a specilication.

This invention has reference to an improvement in bracelets, and more particularly to an improvement in means for pivotally securing the members cl a two-part bracelet together.

The object or' my the construction of a two-part bracelet, whereby the bracelet is provided with a pivot-hinge adapted to separate the halves of the bracelet at the joint when the bracelet is opened to draw the halves together when the bracelet is closed and to limit the opening and closing movements of the bracelet.

A further object of my invention is to sin1- pli'ty the construction of a concealed pivothinge 'for bracelets, therebyT strengthening the hinge and reducing the cost of manufacturing the same.

My invention consists in the peculiar and novel construction of a two-part bracelet having a concealed pivot-hinge and a snap, With details or' construction, as will be more fully set forth hereinafter and claimed.

Figure 1 is a 'lace view of my improved bracelet, showing the bracelet in the closed position. Fig. 2 is an edge view of the bracelet, showing the bracelet in the closed posi tion in lfull lines and in the open position in broken lines. Fig. 3 is an enlarged detail sectional view taken on line 3 3 of Fig. 1 through the shell of the bracelet looking at the inner face 'of the hinge. Fig. 4 is an enlarged detail sectional view taken on line 4 4 of Fig. 3 through the shell and hinge of' the bracelet. Fig. 5 is an enlarged transverse sectional view taken on line 5 5 of Fig. 1 through the shell and hinge of the bracelet with the bracelet in the closed position. Fig. 6 is an enlarged transversesectional view similar to Fig. 5 with the bracelet in the open position, and Fig. 7 is an enlarged detail sectional view taken on line 7 7 of Fig. 1 through the snap of the bracelet.

In the drawings, a indicates one semicircular half, b the other coinciding semicircular half, c the snap, and d the concealed pivothinge, of the bracelet.

l l l The semicircular halves a, and b are Jformed a from a tube which vis circular in cross-section.

The half a has the open ends 8 and 10, and the half b has the open ends 9 and 1 1. The ends 8 and 9 are cut square across and coincide when the bracelet is closed. The ends 10 and 11 are cut at an angle, as shown in Figs. 1 and 7, and coincide when the bracelet is closed. The snap c is formed by the end 11 and a plug 12, secured in the end 10 by solder or other means. The plug 12 extends slightly beyond the end 10 and secures the invention is to improve ends 10 and 11 together by snapping into the open end 11 of the hall" l) when the bracelet is closed.

The hinge d consists of the members 13 and 14, curved to conform to the contour of the bracelet and shaped to 'lit in the ends 8 and 9. The member 13 is constructed to have the body portion 15, from one end of which extends the central stud 16, having a transverse hole 17 and forming the pintle of the hinge, as shown in Figs. 4 and 5. The member 14 is constructed to have a central hole 1S in the end, adapted to receive the stud 16, and a transverse cam-groove 19, formed at an angle in the side ol the i'neniber and extending approximately one-quarter the circumference of the member through to the hole 1S in the member, as shown in Figs. 3 and 5. A pin .20 is secured in the transverse hole 17 in the stud 16 and extends outward into the cam-groove 19 in the member 14, as shown in Figs. 3 and 4.

The hinge is assembled by inserlirg the stud 16 of' the menber 13 into the hole 1S in the member 14 and di iv ing the pin Z0 through the cam-groove 19 into the hole 17 in the stud 16, thus locking the members of the hinge to gether. The sides of the groove 19 act as a cam on the pin 2O to separate or draw the rrembers of the hinge together when the hinge is-cpened or closed, and the ends of tle cam-groove act as stops on the pin to liniit the opening or closing movements of the hinge. The members ol the hinge are now secured in the ends S and 9 oi' the bracelet by solder or other means in a position for the join't of the hinge to coincide with the juncture of the ends 8 and 9 of the bracelet.

In opening the bracelet the ends 10 and 11 are forced apart and the halves a and b moved into the position as shown in broken lines in Fig. 2. The groove 19, acting as a IOO claim as neW and desire to cam on the pin 20, separates the halves a l groove 19 formed at an angle in the side of and t at the hinge, thereby preventing Wear l the member, a pin 2() secured to the stud 16 on the ends 8 and 9 of the bracelet. When and extending into the cam-groove 19, and the bracelet is closed, the ends 8 and 9 are means for holding the ends 10 and 11 of the drawn tightly together and the open end 11 bracelet in the closed position, as described. of the half b, riding up the incline end of the 3. In a bracelet, the combination Withthe plug 12, sna s over the protruding` end of the tubular halves a and b having the open ends plug and ho ds the bracelet in the closed posil 8 and 9 out square across and the open ends tion, as shown in Fig. 7. i and 11 cut at an angle, of a pivot-hinge d It is evident that the halves a and b of the l consisting of a member '13 shaped to iit in the bracelet could be oval or square in cross-secl open end 8 of the half a and constructed to tion and that the bracelet could have any l have a body portion from one end of Which design or coniiguration desired Without maj extends a central stud- 16 having a transterially affecting the spirit of my invention. l verse hole 17 and a member 14 shaped to it Having thus described my invention, I in the end 9 of the half t and constructed to secure by Letters have a central hole 18 in the end adapted to Patent* receive the stud 16 and a transverse cam- 1. A bracelet the body of Which consists 1 of tWo tubular members, a pivot-hinge comprising a member having a central stud, a member having a central hole into Which the stud extends and a cam-groove, and a pin extending from the stud into the cam-groove, and means for holding the tubular members ofthe bracelet together in the closed position.

2. In a bracelet, the combination With the I tubular halves a and having the open ends l 8 and 9 cut square across and the open ends 10 and 11 of a pivot-hinge d consisting of a member 13 shaped to fit in the end 8 of the half a and constructed to have the body portion 15 from one end of Which extends a central stud 16 and a member 14 shaped to lit in l the end 9 of the half I) and constructed to have t I/Vitnesses: a central hole 18 in the end adapted to re- ADA E. HAGERTY, ceive the stud 16 and a transverse cam- I J. A. MILLER.

the member, a pin 20 secured to the stud 16 in the hole 17 and extending into the cam groove 19 and a snap c formed by the end 11 and a plug 12 secured in the end 10 and eX- tending into the end 1 1, whereby the halves a and t are pivotally secured together, are separated or drawn together in the opening or closing of the bracelet, the halves held n the closed position, and the opening and closing movement of the halves linited, as described.

In testimony whereof I have signed my name to this specication in the presence of tWo subscribing Witnesses.

FRANK E. GRAIN.

groove 19 formed at an angle in the side of 

